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On Windows cpptools.exe is 32-bit and running out of memory in large workspace #7230
Description
Type: LanguageService
Describe the bug
- OS and Version:
- VS Code Version:
- C/C++ Extension Version:
- Other extensions you installed (and if the issue persists after disabling them):
- Does this issue involve using SSH remote to run the extension on a remote machine?:
- A clear and concise description of what the bug is, including information about the workspace (i.e. is the workspace a single project or multiple projects, size of the project, etc).
I'm trying to work with Intellisense in a ~1.5m file workspace with compile_commands.json, which was working before. As of 1.22, it is broken for me. Upon further investigation I see that the cpptools.exe is crashing after going over 4 GB because it's 32-bit process even though I'm running 64-bit VSCode.
Steps to reproduce
- Run vscode-cpptools on a large workspace such as Chromium.
- Intellisense doesn't work as cpptools.exe crashes.
Expected behavior
Logs
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Additional context
Activity
sean-mcmanus commentedon Mar 25, 2021
Do you know what version worked for you? Did you want us to use less memory or provide a 64-bit vsix for 1.2.2? The last 64-bit vsix we made available is with 1.1.0 at https://download.visualstudio.microsoft.com/download/pr/17062e60-bd73-48b7-bc31-54d71ef5d48d/2895a0d0eda48a734f6575e103524c42/cpptools-win64.vsix . We don't normally publish a 64-bit vsix because we don't expect our users to need to use that much memory.
Our 1.3.0 release is expected to have a change that should reduce memory and processing time for really large workspace (the change isn't in 1.3.0-insiders or 1.3.0-insiders2 yet).
We've tested with chromium previously and didn't get any out of memories. Could you provide more repro details?
sean-mcmanus commentedon Apr 1, 2021
It sounds like we have an internal repro we could try.